Palmyra, MO Weather & Growing Conditions
Today
90°F
Sunny
Sunny, with a high near 90. South wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Sunny | 7 mph S | 0% |
| Tonight | 71°F | Partly Cloudy | 5 mph S | 13% |
| Wednesday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph S | 55% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph NE | 91% |
| Thursday | 84°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SE | 91% |
| Thursday Night | 66°F | Partly Cloudy | 2 mph SE | 10% |
| Friday | 86°F | Mostly Sunny | 1 mph S | 10% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph S | 30% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms then Sunny | 5 mph SW | 22% |
| Saturday Night | 73°F | Mostly Clear | 3 to 8 mph S | 7% |
| Sunday | 91°F | Sunny | 7 to 10 mph SW | 3% |
| Sunday Night | 74°F | Mostly Clear | 8 mph S | 9% |
| Monday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 to 10 mph SW | 15% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 8 mph S | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Palmyra, MO
Last spring frost
Apr 8
First fall frost
Oct 30
Growing season
204 days
Hardiness zone
6a
Explore more for Palmyra, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Quincy Dam 21, Il (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.